/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2006-2007 Igor Ulyanov <iulyanov@gmail.com>

 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <algorithm>

#include <QLabel>

#include <QPixmap>

#include <QPushButton>

#include <QFrame>

#include <QDebug>

#include "vertScrollArea.h"

#include "teamselect.h"

#include "teamselhelper.h"

#include "frameTeam.h"

void TeamSelWidget::addTeam(HWTeam team)

{

    if(team.isNetTeam())

    {

        framePlaying->addTeam(team, true);

        curPlayingTeams.push_back(team);

        connect(framePlaying->getTeamWidget(team), SIGNAL(hhNmChanged(const HWTeam&)),

                this, SLOT(hhNumChanged(const HWTeam&)));

        blockSignals(true);

        dynamic_cast<TeamShowWidget*>(framePlaying->getTeamWidget(team))->hhNumChanged();

        blockSignals(false);

        connect(framePlaying->getTeamWidget(team), SIGNAL(teamColorChanged(const HWTeam&)),

                this, SLOT(proxyTeamColorChanged(const HWTeam&)));

        // Hide team notice if at least two teams.

        if (curPlayingTeams.size() >= 2)

        {

            numTeamNotice->hide();

        }

    }

    else

    {

        frameDontPlaying->addTeam(team, false);

        m_curNotPlayingTeams.push_back(team);

        if(m_acceptOuter)

        {

            connect(frameDontPlaying->getTeamWidget(team), SIGNAL(teamStatusChanged(HWTeam)),

                    this, SLOT(pre_changeTeamStatus(HWTeam)));

        }

        else

        {

            connect(frameDontPlaying->getTeamWidget(team), SIGNAL(teamStatusChanged(HWTeam)),

                    this, SLOT(changeTeamStatus(HWTeam)));

        }

    }

    emit setEnabledGameStart(curPlayingTeams.size()>1);

}

void TeamSelWidget::setInteractivity(bool interactive)

{

    framePlaying->setInteractivity(interactive);

}

void TeamSelWidget::setUser(const QString& nickname)

{

    m_curUser = nickname;

}

void TeamSelWidget::hhNumChanged(const HWTeam& team)

{

    QList<HWTeam>::iterator itPlay=std::find(curPlayingTeams.begin(), curPlayingTeams.end(), team);

    if(itPlay==curPlayingTeams.end())

    {

        qWarning() << QString("hhNumChanged: team '%1' not found").arg(team.name());

        return;

    }

    itPlay->setNumHedgehogs(team.numHedgehogs());

    emit hhogsNumChanged(team);

}

void TeamSelWidget::proxyTeamColorChanged(const HWTeam& team)

{

    QList<HWTeam>::iterator itPlay=std::find(curPlayingTeams.begin(), curPlayingTeams.end(), team);

    if(itPlay==curPlayingTeams.end())

    {

        qWarning() << QString("proxyTeamColorChanged: team '%1' not found").arg(team.name());

        return;

    }

    itPlay->setColor(team.color());

    emit teamColorChanged(team);

}

void TeamSelWidget::changeHHNum(const HWTeam& team)

{

    QList<HWTeam>::iterator itPlay=std::find(curPlayingTeams.begin(), curPlayingTeams.end(), team);

    if(itPlay==curPlayingTeams.end())

    {

        qWarning() << QString("changeHHNum: team '%1' not found").arg(team.name());

        return;

    }

    itPlay->setNumHedgehogs(team.numHedgehogs());

    framePlaying->setHHNum(team);

}

void TeamSelWidget::changeTeamColor(const HWTeam& team)

{

    QList<HWTeam>::iterator itPlay=std::find(curPlayingTeams.begin(), curPlayingTeams.end(), team);

    if(itPlay==curPlayingTeams.end())

    {

        qWarning() << QString("changeTeamColor: team '%1' not found").arg(team.name());

        return;

    }

    itPlay->setColor(team.color());

    framePlaying->setTeamColor(team);

}

void TeamSelWidget::removeNetTeam(const HWTeam& team)

{

    //qDebug() << QString("removeNetTeam: removing team '%1'").arg(team.TeamName);

    QList<HWTeam>::iterator itPlay=std::find(curPlayingTeams.begin(), curPlayingTeams.end(), team);

    if(itPlay==curPlayingTeams.end())

    {

        qWarning() << QString("removeNetTeam: team '%1' not found").arg(team.name());

        return;

    }

    if(itPlay->isNetTeam())

    {

        QObject::disconnect(framePlaying->getTeamWidget(*itPlay), SIGNAL(teamStatusChanged(HWTeam)));

        framePlaying->removeTeam(team);

        curPlayingTeams.erase(itPlay);

        // Show team notice if less than two teams.

        if (curPlayingTeams.size() < 2)

        {

            numTeamNotice->show();

        }

    }

    else

    {

        qWarning() << QString("removeNetTeam: team '%1' was actually a local team!").arg(team.name());

    }

    emit setEnabledGameStart(curPlayingTeams.size()>1);

}

// Removes teams classified as net teams but which are owned by the local user.

// Those teams don't make sense and might be leftovers from a finished game

// after rejoining. See also: Bugzilla bug 597.

void TeamSelWidget::cleanupFakeNetTeams()

{

    // m_curUser is not set for offline games. No cleanup is needed when offline.

    if(m_curUser.isNull())

        return;

    QList<HWTeam>::iterator itPlay = curPlayingTeams.begin();

    while(itPlay != curPlayingTeams.end())

    {

        if(itPlay->isNetTeam() && itPlay->owner() == m_curUser)

        {

            qDebug() << QString("cleanupFakeNetTeams: team '%1' removed").arg(itPlay->name());

            QObject::disconnect(framePlaying->getTeamWidget(*itPlay), SIGNAL(teamStatusChanged(HWTeam)));

            framePlaying->removeTeam(*itPlay);

            itPlay = curPlayingTeams.erase(itPlay);

        }

        else

            itPlay++;

    }

    // Show team notice if less than two teams.

    if (curPlayingTeams.size() < 2)

    {

        numTeamNotice->show();

    }

    emit setEnabledGameStart(curPlayingTeams.size()>1);

}

void TeamSelWidget::changeTeamStatus(HWTeam team)

{

    QList<HWTeam>::iterator itDontPlay=std::find(m_curNotPlayingTeams.begin(), m_curNotPlayingTeams.end(), team);

    QList<HWTeam>::iterator itPlay=std::find(curPlayingTeams.begin(), curPlayingTeams.end(), team);

    bool willBePlaying=itDontPlay!=m_curNotPlayingTeams.end();

    if(!willBePlaying)

    {

        // playing team => dont playing

        m_curNotPlayingTeams.push_back(*itPlay);

        emit teamNotPlaying(*itPlay);

        curPlayingTeams.erase(itPlay);

        // Show team notice if less than two teams.

        if (curPlayingTeams.size() < 2)

        {

            numTeamNotice->show();

        }

    }

    else

    {

        // return if max playing teams reached

        if(framePlaying->isFullTeams()) return;

        // dont playing team => playing

        itDontPlay->setColor(framePlaying->getNextColor());

        team=*itDontPlay; // for net team info saving in framePlaying (we have only name with netID from network)

        curPlayingTeams.push_back(*itDontPlay);

        if(!m_acceptOuter) emit teamWillPlay(*itDontPlay);

        m_curNotPlayingTeams.erase(itDontPlay);

        // Hide team notice if at least two teams.

        if (curPlayingTeams.size() >= 2)

        {

            numTeamNotice->hide();

        }

    }

    FrameTeams* pRemoveTeams;

    FrameTeams* pAddTeams;

    if(!willBePlaying)

    {

        pRemoveTeams=framePlaying;

        pAddTeams=frameDontPlaying;

    }

    else

    {

        pRemoveTeams=frameDontPlaying;

        pAddTeams=framePlaying;

    }

    pAddTeams->addTeam(team, willBePlaying);

    pRemoveTeams->removeTeam(team);

    if(!team.isNetTeam() && m_acceptOuter && !willBePlaying)

    {

        connect(frameDontPlaying->getTeamWidget(team), SIGNAL(teamStatusChanged(HWTeam)),

                this, SLOT(pre_changeTeamStatus(HWTeam)));

    }

    else

    {

        connect(pAddTeams->getTeamWidget(team), SIGNAL(teamStatusChanged(HWTeam)),

                this, SLOT(changeTeamStatus(HWTeam)));

    }

    if(willBePlaying)

    {

        connect(framePlaying->getTeamWidget(team), SIGNAL(hhNmChanged(const HWTeam&)),

                this, SLOT(hhNumChanged(const HWTeam&)));

        blockSignals(true);

        dynamic_cast<TeamShowWidget*>(framePlaying->getTeamWidget(team))->hhNumChanged();

        blockSignals(false);

        connect(framePlaying->getTeamWidget(team), SIGNAL(teamColorChanged(const HWTeam&)),

                this, SLOT(proxyTeamColorChanged(const HWTeam&)));

        emit teamColorChanged(((TeamShowWidget*)framePlaying->getTeamWidget(team))->getTeam());

    }

    QSize szh=pAddTeams->sizeHint();

    QSize szh1=pRemoveTeams->sizeHint();

    if(szh.isValid() && szh1.isValid())

    {

        pAddTeams->resize(pAddTeams->size().width(), szh.height());

        pRemoveTeams->resize(pRemoveTeams->size().width(), szh1.height());

    }

    repaint();

    emit setEnabledGameStart(curPlayingTeams.size()>1);

}

void TeamSelWidget::addScrArea(FrameTeams* pfteams, QColor color, int minHeight, int maxHeight, bool setFrame)

{

    VertScrArea* area = new VertScrArea(color);

    area->setWidget(pfteams);

    mainLayout.addWidget(area);

    if (minHeight > 0)

        area->setMinimumHeight(minHeight);

    if (maxHeight > 0)

        area->setMaximumHeight(maxHeight);

    if (setFrame)

        pfteams->setDecoFrameEnabled(true);

}

TeamSelWidget::TeamSelWidget(QWidget* parent) :

    QGroupBox(parent), mainLayout(this), m_acceptOuter(false)

{

    setTitle(QGroupBox::tr("Playing teams"));

    framePlaying = new FrameTeams();

    frameDontPlaying = new FrameTeams();

    // Add notice about number of required teams.

    numTeamNotice = new QLabel(tr("At least two teams are required to play!"));

    numTeamNotice->setWordWrap(true);

    mainLayout.addWidget(numTeamNotice);

    QPalette p;

    p.setColor(QPalette::Window, QColor(0x00, 0x00, 0x00));

    addScrArea(framePlaying, p.color(QPalette::Window).light(105), 161, 325, true);

    addScrArea(frameDontPlaying, p.color(QPalette::Window).dark(105), 80, 0, false);

    this->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);

    this->setMinimumWidth(200);

}

void TeamSelWidget::setAcceptOuter(bool acceptOuter)

{

    m_acceptOuter=acceptOuter;

}

void TeamSelWidget::resetPlayingTeams(const QList<HWTeam>& teamslist)

{

    //for(it=curPlayingTeams.begin(); it!=curPlayingTeams.end(); it++) {

    //framePlaying->removeTeam(*it);

    //}

    framePlaying->resetTeams();

    framePlaying->resetColors();

    curPlayingTeams.clear();

    //for(it=curDontPlayingTeams.begin(); it!=curDontPlayingTeams.end(); it++) {

    //frameDontPlaying->removeTeam(*it);

    //}

    frameDontPlaying->resetTeams();

    m_curNotPlayingTeams.clear();

    foreach(HWTeam team, teamslist)

        addTeam(team);

    numTeamNotice->show();

    repaint();

}

bool TeamSelWidget::isPlaying(const HWTeam &team) const

{

    return curPlayingTeams.contains(team);

}

QList<HWTeam> TeamSelWidget::getPlayingTeams() const

{

    return curPlayingTeams;

}

QList<HWTeam> TeamSelWidget::getNotPlayingTeams() const

{

    return m_curNotPlayingTeams;

}

unsigned short TeamSelWidget::getNumHedgehogs() const

{

    unsigned short numHogs = 0;

    QList<HWTeam>::const_iterator team;

    for(team = curPlayingTeams.begin(); team != curPlayingTeams.end(); ++team)

    {

        numHogs += (*team).numHedgehogs();

    }

    return numHogs;

}

void TeamSelWidget::pre_changeTeamStatus(const HWTeam & team)

{

    //team.setColor(framePlaying->getNextColor());

    emit acceptRequested(team);

}

void TeamSelWidget::repaint()

{

    QWidget::repaint();

    framePlaying->repaint();

    frameDontPlaying->repaint();

}